Reliability

internal reliability: this refers to the extent that a study is consistent within itself. If a study has a standardised procedure and all participants experience the same thing (so high level of control) then the study has interneal reliability. if a study has high internal reliability then it can be replicated to test for external reliability

external reliability: to test if a study has external reliability the researcher would use the test re test method. this means simply repeating the study to see if the same…